Fix leave message in common packet listener

patches/server/Fixes-kick-event-leave-message-not-being-sent.patch

@@ -16,6 +16,39 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      // CraftBukkit end
      public boolean isRealPlayer; // Paper
      public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleHashSet; // Paper
+diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ 
+     @Override
+     public void onDisconnect(Component reason) {
++        // Paper start
++        this.onDisconnect(reason, null);
++    }
++    public void onDisconnect(Component reason, @Nullable net.kyori.adventure.text.Component quitMessage) {
++        // Paper end
+         if (this.isSingleplayerOwner()) {
+             ServerCommonPacketListenerImpl.LOGGER.info("Stopping singleplayer server as player logged out");
+             this.server.halt(false);
+@@ -0,0 +0,0 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+             // Do not kick the player
+             return;
+         }
+-        this.player.kickLeaveMessage = event.getLeaveMessage(); // CraftBukkit - SPIGOT-3034: Forward leave message to PlayerQuitEvent
+         // Send the possibly modified leave message
+         final Component ichatbasecomponent = io.papermc.paper.adventure.PaperAdventure.asVanilla(event.reason()); // Paper - Adventure
+         // CraftBukkit end
+@@ -0,0 +0,0 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+         this.connection.send(new ClientboundDisconnectPacket(ichatbasecomponent), PacketSendListener.thenRun(() -> {
+             this.connection.disconnect(ichatbasecomponent);
+         }));
+-        this.onDisconnect(ichatbasecomponent); // CraftBukkit - fire quit instantly
++        this.onDisconnect(ichatbasecomponent, event.leaveMessage()); // CraftBukkit - fire quit instantly
+         this.connection.setReadOnly();
+         MinecraftServer minecraftserver = this.server;
+         Connection networkmanager = this.connection;
 diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -27,6 +60,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        // Paper start
 +        this.onDisconnect(reason, null);
 +    }
++    @Override
 +    public void onDisconnect(Component reason, @Nullable net.kyori.adventure.text.Component quitMessage) {
 +        // Paper end
          // CraftBukkit start - Rarely it would send a disconnect line twice